Raises the Closed event.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The method is obsolete in the .NET Framework version 2.0; use the OnFormClosed method instead.
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnFormClosed method also allows derived classes to handle the event without attaching a delegate. Overriding this method is the preferred technique for handling the event in a derived class.
The and OnClosing methods are not called when the Application.Exit method is called to exit your application. If you have validation code in either of these methods that must be executed, you should call the Form.Close method for each open form individually before calling the Exit method.
When overriding in a derived class, be sure to call the base class's method so that registered delegates receive the event.